Three years ago Ukrainians sprang into action to help with the war effort. Since then, people’s day jobs have caught up with them and tough economic times make it harder to keep donating. But whether it’s asking for donations on your birthday, or giving up a weekend to deliver a car to the frontline, doing one’s bit for the military has become an integral part of life for many Ukrainians. Report by Gulliver Cragg, Yurii Dankevich and Yurii Shy.